javaBean 里面获取系统时间出错解决办法

              public String gettime()    {       Calendar cal=Calendar.getInstance();       int year=cal.get(Calendar.YEAR);       int month=cal.get(Calendar.MONTH);       int date=cal.get(Calendar.DAY_OF_MONTH);         int hour=cal.get(Calendar.HOUR_OF_DAY);       int minute=cal.get(Calendar.MINUTE);       String year1=String.valueOf(year);       String month1=String.valueOf(month);       String date1=String.valueOf(date);       String hour1=String.valueOf(hour);       String minute1=String.valueOf(minute);       return (year1+"-"+month1+"-"+date1+" "+hour1+":"+minute1);           }

public String gettime()   {      SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm");//设置日期格式      return df.format(new Date());// new Date()为获取当前系统时间   }